Carton



Aug. 18, 1936. w LINDBLQW 2,051,561

CARTON Filed May 13, 1952 2 Sheets-Sheet 1 FIB.1-

LEETERWLINDBLUW/ Aug. 18, 1936. w LlNDBLOw 2,051,561

CARTON Filed May 13, 1932 2 Sheets-Sheet 2 gwuentoa LEETERWLINDBLUVL Patented Aug. 18, 1936 UNITED STATES PATENT OFFlCE 9 Claims.

My invention consists in a new and useful improvement in cartons and is designed to produce a carton formed of a single blank and provided with means for producing an outside lifting tab for the hinged cover of the dispensing opening. Heretofore, in the production of a carton having the so-called pouring top of an opening and closing nature, a large amount of additional material has been used, and the devices have proved to be too complicated for use on the standard packaging machines, or to be impractical for everyday use. My invention provides a carton of such simple design and construction as to be readily adaptable to both standard box-making and packaging machinery, features which will have a great bearing on the value of the carton for practical purposes. .Since the production of my'improved carton requires only the same amount of material as is now used in the standard carton blank, it meets every requirement from this particular angle.

My invention resides in changes in the standard blank, as to cutting, scoring and folding, which produce a top having a special flap which can be lifted by an outside tab, so as to readily open and close the top as may be required. The particularly novel method of scoring, creasing and folding the blank does not in any way weaken or lessen the efficiency of the carton, which is very important in the packaging of dry merchandise or other materials of either a coarse, fine or powdered nature.

While I have illustrated in the drawings filed herewith and have hereinafter fully described one specific embodiment of my invention, it is to be distinctly understood that I do not consider my invention limited to said specific embodiment, but refer for its scope to the claims appended hereto.

In the drawings:

Fig. l is a plan view of the blank from which my improved carton is made.

Fig. 2 is a perspective view of my improved top, the parts being shown in fully open position.

Fig. 3 is a view showing the top end flaps in folded position.

Fig. 4 is a view showing one top side flap folded over the top end flaps, and the outside tab of the folded side flap folded down against one of the end walls.

Fig. 5 is a view showing the other top side flap folded over .the first top side flap, and sealed in place, thus completely closing the carton.

Fig. 6 is a view showing my improved hinged cover in open position.

Fig. 7 is a view showing the cover in a partially closed position, its tab being received within the carton.

As illustrated in the drawings, my improved carton is formed of a blank having the side walls 5 A and B, the front end wall C, the rear end wall D, and the sealing flap E. I provide the ordinary closure flaps A--l, B-l, CI and Dl, at the bottoms of the walls A, B, C and D respectively. The portions of my carton, thus far del0 scribed, are of the usual form in such structures and may be of any suitable size and porportion as desired, so that when folded and sealed the blank will form a carton of-the usual type.

I shall now describe the improved form of top which I provide for my carton. The wall D has, at its top, the flap D2 of the ordinary type similar to its bottom flap Dl. The wall A has, at its top, the flap A,2 from which projects, over the wall C, the tab A3, and I provide on the flap A2 two convergent perforations In and II and the score I2 which define the'cover 13 for the dispensing opening. Above the wall C, there is the triangular-shaped flap C-2, and above the wall B there is the usual form of flap B--2 but having the score 14 corresponding with the score 12, todefine the portion 15 which may bend with the cover l3 to provide the dispensing opening.

In Figs. 2, 3, 4 and 5, I have illustrated the steps by which my improved top is formed by the elements heretofore described. The end flaps C-2 and D-2 are first folded inwardly at right angles to their respective walls C and D (Fig. 3). The side flap A2 is then folded in-' wardly at right angles to its wall A and overly-' ing the end flaps C--2 and D2, and the tab A-3 is bent downwardly at right angles to.the flap A2, overlying the end wall C, and is detachably fastened thereto in any suitable way (Fig. 4). Then the side flap B2 is folded inwardly at right angles to its wall B, overlying the side flap A-Z, and is adhesively attached to the flap A2, thus sealing the carton (Fig. 5).

It is to be noted that the tab A3 is loosened from the wall C, its tip being preferably not fastened to the wall C to facilitate the loosening of the tab A-3 from the wall C. The tab A--3 is then lifted, thus causing the cover 13 to be separated from the rest of the flap A--2 along the perforations I 0 and I I, and the portion IE to tear, with the cover 13, along the lines of least resistance. The cover I 3 and the part of the portion l5 adhering thereto can then be bent backward along the scores 12 and II, thus opening the carton (Fig. 6). The flap 0-2 may be torn oif after the cover I! is opened. When the cover I3 is to be returned to position to close the carton, the tab A-3 is inserted into the carton to hold the cover IS in cloud position.

It is obvious that the perforations II and II and the score l2 may be disposed upon the flap A-2 in any desired way to produce that form of cover l3 which may be desired.

Having described my invention, what I claim 1. A carton having a fiap provided with a pair of perforated lines and a transverse score line connecting the ends of the perforated lines, two flaps underlying the first flap, a fourth flap overlying the first fiap, and a tab on one end of the first flap projecting from under one end of the fourth flap.

2. A carton having a fiap provided with a pair of perforated lines and a. score line connecting the ends of the perforated lines, a second flap overlying the first flap and having a score disposed above the score of the first flap, and a tab on one end of the first flap projecting from under one end of the second flap.

3. In a carton, the combination of a body portion; a cover portion provided with two perforated lines and a score to define a hinged cover; a second cover portion overlying said first cover portion and having a score to define the area of said second cover portion disposed over said hinged cover; and a tab projecting from said hinged cover and detachably attached against the outer surface of the body portion.

4. In a carton blank, the combination of two side walls; two end walls, a flap on each end wall, one of said end-wall fiaps being triangular, a flap on one side wall having a transverse score and a triangular projecting tab of the residual material adjacent to the said triangular flap; and a flap on the other side wall having a transverse score.

5. In a carton blank, the combination of two side walls; two end walls; a flap on each end wall; a fiap on one side wall having a tab projecting from one end of the flap, a transverse score and two perforated lines extending from said score to the said end of the flap; and afiap on the other side wall having a transverse score corresponding with the score on the other flap.

6. In a carton blank, the combination of side and end walls, defined by scores. andrectangular portions extending from said walls, defined by scores and lines of severance, one of said portions being so divided by a line of severanceastoforma triangularfiap on its wall and a triangular tab upon the adjacent flap.

7. In a carton blank, the combination of side and end walls; bottom flaps on said walls; and a series of top flaps on said walls comprising a rectangular fiap above one side wall, a rectangular flap above one end wall, a right triangular flap above the other end wall, and a quadrilateral flap above 'the other side wall having two sides parallel with the top edge of its side wall, one side at right angles to said sides, and its fourth side adjacent to and correspondingswith the hypotenuse of the said triangular fiap.

8. In a carton blank, the combination of four side walls; a cover flap extended outwardly from each of said walls, and adapted to be folded to form a three-ply cover; and a tearing handle extended outwardly from the outer edge of the flap located in the. middle layer of the three-ply cover, and folded at right angles to the cover;

9. In a carton, the combination of four side walls; a cover flap extended from each wall, and folded at right angles to the wall, the folded flaps forming a three-ply cover for the carton; and a tearing handle extended outwardly from one end of the middle layer of. the cover, and folded at right angles to the cover.

LESTER w. LTNDBLOW. 

